/* Single Hero — client industrial deployment footage, with no foreground product compositing. */
.opening-sequence--single {
  --hqess-opening-surface: #111819;
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  color: var(--hqess-white);
  background: var(--hqess-opening-surface);
}

.hero-single {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  isolation: isolate;
  overflow: hidden;
}
.hero-single::after {
  content: "";
  position: absolute;
  z-index: 0;
  inset: auto 0 0;
  height: clamp(7rem, 20vh, 14rem);
  background: linear-gradient(to bottom, transparent, var(--hqess-opening-surface));
  pointer-events: none;
}

.hero-single__media,
.hero-single__poster,
.hero-single__video,
.hero-single__scrim {
  position: absolute;
  inset: 0;
}

.hero-single__media { z-index: -3; background: #161b1c; }
.hero-single__poster {
  background: #161b1c var(--hero-poster) center / cover no-repeat;
  filter: saturate(.72) contrast(1.05) brightness(.66);
}
.hero-single__video {
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  filter: saturate(.72) contrast(1.05) brightness(.66);
  transition: opacity 500ms ease;
}
[data-hero-single].is-video-ready .hero-single__video { opacity: 1; }

.hero-single__scrim {
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(14, 19, 20, .93) 0%, rgba(14, 19, 20, .86) 31%, rgba(14, 19, 20, .56) 53%, rgba(14, 19, 20, .22) 78%, rgba(14, 19, 20, .34) 100%),
    linear-gradient(180deg, rgba(10, 14, 15, .44) 0%, rgba(10, 14, 15, .02) 37%, rgba(10, 14, 15, .6) 100%);
}

.hero-single__content {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
  min-height: 100svh;
  align-items: center;
  padding-top: clamp(5.5rem, 10vh, 8rem);
  padding-bottom: clamp(5.5rem, 10vh, 8rem);
}
.hero-single__copy { width: min(100%, 42.5rem); }
.hero-single__title {
  max-width: 10.6ch;
  margin: 0;
  color: var(--hqess-white);
  font-family: var(--hqess-font-display);
  font-size: clamp(4.75rem, 7.1vw, 7.9rem);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: .87;
}
:root:lang(en) .hero-single__title {
  max-width: none;
  font-size: clamp(2rem, 9.4vw, 6.5rem);
  line-height: .98;
  text-transform: uppercase;
}
.hero-single__title-line { display: block; white-space: nowrap; }
.hero-single__title-power {
  color: #27945f;
  font-size: 1.15em;
}
.hero-kpi strong { color: #27945f; }
@supports ((background-clip: text) or (-webkit-background-clip: text)) {
  .hero-single__title-power,
  .hero-kpi strong {
    background: var(--hqess-energy-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}
@media (forced-colors: active) {
  .hero-single__title-power,
  .hero-kpi strong { background: none; color: CanvasText; }
}
:root:lang(zh) .hero-single__title {
  max-width: none;
  font-family: var(--hqess-font-display);
  font-size: clamp(1.5rem, 14vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -.025em;
  line-height: 1.15;
  white-space: nowrap;
}
:root:lang(zh) .hero-single__title-line { display: inline; }
.hero-single__description {
  max-width: 33rem;
  margin: 1.85rem 0 0;
  color: rgba(255, 255, 255, .8);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.62;
}
.hero-single__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.15rem; }
.hero-single__actions .button { min-height: 3rem; border-radius: 3px; }
.hero-single__actions .button--outline { border-color: rgba(255, 255, 255, .72); }
.hero-single__actions .button--outline:hover,
.hero-single__actions .button--outline:focus-visible { border-color: var(--hqess-white); background: var(--hqess-white); color: var(--hqess-graphite); }

.hero-single__scroll {
  position: absolute;
  z-index: 2;
  bottom: max(1.5rem, env(safe-area-inset-bottom));
  left: 50%;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: .75rem;
  transform: translateX(-50%);
  text-decoration: none;
}
.hero-single__scroll-mouse {
  position: relative;
  width: 1.5rem;
  height: 2.5rem;
  border: 2px solid rgba(67, 183, 122, .65);
  border-radius: 1rem;
  transition: border-color 180ms ease;
}
.hero-single__scroll-mouse::before {
  content: "";
  position: absolute;
  top: .5rem;
  left: 50%;
  width: .25rem;
  height: .375rem;
  border-radius: 1rem;
  background: var(--hqess-amber);
  transform: translateX(-50%);
  animation: hqess-scroll-hint 1.8s ease-in-out infinite;
}
.hero-single__scroll:hover .hero-single__scroll-mouse,
.hero-single__scroll:focus-visible .hero-single__scroll-mouse { border-color: #43b77a; }
@keyframes hqess-scroll-hint {
  0%, 20% { opacity: 1; transform: translate(-50%, 0); }
  75%, 100% { opacity: 0; transform: translate(-50%, .65rem); }
}
.hero-single__kpis {
  scroll-margin-top: 6rem;
  position: relative;
  z-index: 1;
  padding: clamp(2.5rem, 4vw, 4rem) 0 clamp(3rem, 5vw, 5rem);
  background: var(--hqess-opening-surface);
}
.hero-single__kpis-inner { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(1rem, 2vw, 2rem); }
.hero-kpi { min-width: 0; padding: 0; text-align: center; }
.hero-kpi span { display: block; }
.hero-kpi strong {
  display: inline-block;
  font-family: var(--hqess-font-display);
  font-size: clamp(1.9rem, 3vw, 3.5rem);
  font-weight: var(--hqess-heading-weight);
  letter-spacing: -.02em;
  line-height: 1.15;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.hero-kpi span {
  margin-top: .75rem;
  color: rgba(255, 255, 255, .72);
  font-family: var(--hqess-font-body);
  font-size: clamp(.8125rem, 1.05vw, 1rem);
  font-weight: 600;
  letter-spacing: .1em;
  line-height: 1.5;
  text-transform: uppercase;
}

/* Desktop Hero Header — a single floating navigation surface, not a full-width divider. */
@media (min-width: 74.0625rem) {
  .site-header--overlay,
  .site-header--overlay:not(.is-scrolled):not(.menu-is-open),
  .site-header--overlay.is-scrolled {
    top: .75rem;
    left: 50%;
    width: min(calc(100% - 2.5rem), 75rem);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 1rem;
    background: #1F2328;
    box-shadow: 0 .4rem 1.4rem rgba(0, 0, 0, .14);
    color: var(--hqess-white);
    backdrop-filter: blur(16px);
    transform: translateX(-50%);
  }

  .admin-bar .site-header--overlay { top: calc(32px + .75rem); }
  .site-header--overlay .site-header__inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    min-height: 4rem;
    padding-right: 1.45rem;
    padding-left: 1.45rem;
    gap: 1.25rem;
  }
  .site-header--overlay .site-logo { padding: 0; background: transparent; }
  .site-header--overlay .site-logo picture,
  .site-header--overlay .site-logo img { width: 8.2rem; }
  .site-header--overlay .site-branding { grid-column: 1; min-width: 0; }
  .site-header--overlay .primary-navigation {
    position: static;
    grid-column: 2;
    justify-self: center;
    transform: none;
  }
  .site-header--overlay .language-switcher { grid-column: 3; margin-left: 0; }
  .site-header--overlay .primary-menu { gap: clamp(1.5rem, 2.1vw, 2.25rem); }
  .site-header--overlay .primary-menu a,
  .site-header--overlay .language-switcher { color: rgba(235, 240, 236, .78); }
  .site-header--overlay .primary-menu a { font-size: .875rem; font-weight: 600; letter-spacing: .02em; }
  .site-header--overlay .primary-menu a:hover,
  .site-header--overlay .primary-menu a:focus-visible { color: rgba(255, 255, 255, .92); }
  .site-header--overlay .site-header__cta {
    grid-column: 4;
    min-height: 2rem;
    padding: .625rem 1rem;
    border-radius: .75rem;
  }
}

@media (max-width: 1024px) {
  .hero-single__content { padding-top: 8.5rem; }
  .hero-single__title { font-size: clamp(4.25rem, 8vw, 5.85rem); }
  .hero-single__kpis-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 2rem; }
}

@media (max-width: 720px) {
  .opening-sequence--single, .hero-single, .hero-single__content { min-height: 100svh; }
  .hero-single__poster { background-position: 58% center; filter: saturate(.65) contrast(1.05) brightness(.58); }
  .hero-single__video { display: none; }
  .hero-single__scrim {
    background:
      linear-gradient(180deg, rgba(13, 18, 19, .75) 0%, rgba(13, 18, 19, .56) 37%, rgba(13, 18, 19, .87) 100%),
      linear-gradient(90deg, rgba(13, 18, 19, .65) 0%, rgba(13, 18, 19, .18) 100%);
  }
  .hero-single__content { align-items: flex-start; padding-top: 7.4rem; padding-bottom: 5rem; }
  .hero-single__copy { width: 100%; }
  .hero-single__title { max-width: 8.4ch; font-size: clamp(3.25rem, 14vw, 4.1rem); line-height: .9; }
  .hero-single__description { max-width: 20rem; margin-top: 1.35rem; font-size: .94rem; }
  .hero-single__actions { display: grid; grid-template-columns: 1fr 1fr; width: 100%; margin-top: 1.65rem; gap: .6rem; }
  .hero-single__actions .button { min-width: 0; min-height: 2.85rem; padding-right: .75rem; padding-left: .75rem; font-size: .64rem; }
  .hero-single__actions .button__icon { width: .85rem; height: .85rem; }
  .hero-single__kpis { padding: 2.25rem 0 3rem; }
  .hero-single__kpis-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem 1rem; }
  .hero-kpi strong { font-size: clamp(1.4rem, 6.7vw, 2.25rem); }
  .hero-kpi span { margin-top: .65rem; font-size: .8125rem; letter-spacing: .04em; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-single__scroll-mouse::before { animation: none; }
  .hero-single__video { display: none; }
  .hero-single__video { transition: none; }
}